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NEW FUSION GUIDES FOR GAS PIPING ANNOUNCED

Two Documents Detail Steps for Polyethylene and PA12 Pipe

Fusing sections of PA12 pipe
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The Plastics Pipe Institute, Inc. (PPI) announced that it has two new technical reports available that discuss steps for the fusion of polyethylene and PA12 pipe. “TR-49 Generic Electrofusion User Guide for Field Joining of Polyethylene Gas Piping” and “TR-50 Generic Butt Fusion Joining Procedure for Field Joining of Polyamaide-12 (PA12) Pipe are available without charge at the association’s Energy Piping Systems Division website. PPI is the major North American trade association representing the plastic pipe industry.

Electrofusion
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“For more than four decades of heat fusion of polyethene pipe has provided leak-free joints,” stated Randy Knapp, Ph.D., engineering director. “A PPI task group was formed in 2017 to examine the differences and similarities among the varying joining procedures.  It was also a goal to provide a more uniform, or “generic” joining procedure that could be implemented by pipeline operators for regulated gas applications as required by the Code of Federal Regulations, Title 49. Our new TR-49 report is a step-by-step guide that encompasses our task group’s findings and also contains guidance based on leading gas utility review and the latest research on surface preparation, cleaning and scraping techniques published by the Gas Technology Institute (GTI). This user guide is the first of its kind to provide generic industry guidance for electrofusion developed in cooperation with leading gas utilities.”

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Fusing sections of PA12 pipe

Knapp said the other guide TR-50 focuses on one of the newest gas piping materials. “Polyamide-12 (PA12) piping is now approved for use in regulated gas applications and is well suited for high-pressure gas installations. This new PPI technical report provides a uniform joining procedure that brings a greater consistency to this aspect of gas pipeline installation, will help to facilitate the pipeline operator’s efforts to qualify the procedure, reduce costs, and simplify DOT’s enforcement duties. It also discusses fusion parameters and visual inspection guidelines specific to PA-12.”

www.plasticpipe.org / https://plasticpipe.org/energy/

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